阅读说明：本技术 一种基于电驱动的智能化管刷清洁系统 (Intelligent pipe brush cleaning system based on electric drive ) 是由 刘鑫 邓宇 胡林 周振华 于 2021-07-26 设计创作，主要内容包括：本发明公开了一种基于电驱动的智能化管刷清洁系统,该系统由多个单套管刷清洁装置组成；单套管刷清洁装置包括电机驱动模块、清洁模块与控制模块；电机驱动模块用于驱动管刷在换热管内做往复运动；控制模块由安装于管刷清洁装置内的传感器与位于暖通系统控制柜内的处理器组成,用于主动控制清洁装置的运行与停止。本发明通过使用主动驱动方式,不但消除了传统管刷清洁系统存在的管刷卡在换热管内部的隐患,还能在水室低压力工况下完成清洗工作且不影响整个暖通系统正常运行；同时可由传感器提供的数据对换热器的工作状况进行分析,既能提高管刷清洁系统的工作效率又能为换热器设计维护等方面的工作提供数据支持。(The invention discloses an intelligent tube brush cleaning system based on electric drive, which consists of a plurality of single sleeve brush cleaning devices; the single casing brush cleaning device comprises a motor driving module, a cleaning module and a control module; the motor driving module is used for driving the tube brush to do reciprocating motion in the heat exchange tube; the control module consists of a sensor arranged in the pipe brush cleaning device and a processor positioned in the heating and ventilation system control cabinet and is used for actively controlling the operation and the stop of the cleaning device. By using an active driving mode, the hidden danger that the tube brush is clamped in the heat exchange tube in the traditional tube brush cleaning system is eliminated, the cleaning work can be completed under the working condition of low pressure of the water chamber, and the normal operation of the whole heating and ventilation system is not influenced; meanwhile, the working condition of the heat exchanger can be analyzed by data provided by the sensor, so that the working efficiency of the pipe brush cleaning system can be improved, and data support can be provided for the work in the aspects of design and maintenance of the heat exchanger and the like.)

1. The utility model provides an intelligent tube brush cleaning system based on electric drive comprises a plurality of single sleeve brush cleaning device, its characterized in that: the single casing brush cleaning device consists of a motor driving module, a cleaning module and a control module;

the motor driving module consists of a water inlet end motor assembly and a water outlet end motor assembly, and the water inlet end motor assembly and the water outlet end motor assembly consist of a micro motor, a motor shell and a connecting rope and are respectively arranged on the outer side of a water inlet end tube plate and the outer side of a water outlet end tube plate of the heat exchange tube; the micro motor is arranged on the outer side of the brush basket and is connected with the pipe brush through a connecting rope; the micro motor drives the pipe brush to do circular reciprocating motion in the heat exchange pipe by retracting and releasing the connecting rope, so that the cleaning work is completed; the motor shell is arranged outside the micro motor to protect the micro motor from being influenced by water flow;

the cleaning module consists of a water inlet end brush basket, a water outlet end brush basket and a pipe brush, wherein the water inlet end brush basket and the water outlet end brush basket are respectively arranged on the outer side of a water inlet end pipe plate and the outer side of a water outlet end pipe plate of the heat exchange pipe and are used for receiving and fixing the pipe brush; the pipe brush is connected with the micro motor through a connecting rope, and the outer side of the pipe brush is provided with bristles which are staggered in hardness; the pipe brush circularly reciprocates in the heat exchange pipe by means of power provided by the motor driving module to clean the inner wall of the heat exchange pipe;

the control module consists of sensor components such as a distance sensor and a temperature sensor and a processor positioned in a heating and ventilation system control cabinet, wherein the distance sensor components are arranged on the pipe brush and the water inlet end brush basket and feed back the position information of the pipe brush to the processor; the temperature sensor assembly is arranged on the pipe brush, collects relevant information in the heat exchanger and sends the information to the processor, and data support is provided for self optimization of a cleaning system operation scheme; the processor receives signals fed back by the distance sensor, and controls the operation and stop of the water inlet end motor assembly and the water outlet end motor assembly according to different positions of the pipe brush, so that the pipe brush cleaning device is controlled to complete a normal working process.

2. An intelligent electric drive-based pipe brush cleaning system as claimed in claim 1, wherein: the pipe brush is a movable nylon brush, and the bristles on the outer side are formed by soft bristles parallel to the brush basket framework and hard bristles parallel to the gap of the brush basket framework in an alternating mode.

3. An intelligent electric drive-based pipe brush cleaning system as claimed in claim 1, wherein: when the pipe brush needs to move along with water flow from the water inlet end to the water outlet end of the heat exchange pipe, the water inlet end motor assembly enters a standby state, control over the pipe brush is released, the water outlet end motor assembly is started, the pipe brush is pulled to move from the water inlet end to the water outlet end of the heat exchange pipe through the recovery connecting rope, and the inner wall of the heat exchange pipe is cleaned.

4. An intelligent electric drive-based pipe brush cleaning system as claimed in claim 1, wherein: when the pipe brush needs to move from the water outlet end of the heat exchange pipe to the water inlet end in the direction of the reverse current, the water outlet end motor assembly enters a standby state, control over the pipe brush is released, the water inlet end motor assembly is started, the pipe brush is pulled to move from the water outlet end of the heat exchange pipe to the water inlet end in the direction through the recovery connecting rope, and the water inlet end brush basket is returned after the inner wall of the heat exchange pipe is cleaned again.

5. An intelligent tube brush cleaning system based on electric drive according to claim 3 or 4, characterized in that: when the tube brush moves along with water flow and the moving speed is higher, the control module sends a signal to the motor driving module to control the micro motor to reduce the provided traction force so as to reduce the moving speed of the tube brush; through the cooperation of the control module and the motor driving module, the movement speed of the pipe brush can be controlled within a preset range no matter the pipe brush moves along with water flow or against water flow.

Technical Field

The invention relates to the field of cleaning in a heat exchange tube, in particular to an intelligent tube brush cleaning system based on electric drive.

Background

The application of the heat exchange tube is more and more extensive nowadays, especially in the heating ventilation air conditioning field. However, with the technical progress, the design of the heat exchanger is more and more diversified, the number of the heat exchange tubes in the heat exchanger is more and more, and the arrangement mode is more and more complicated, so that the requirement for efficiently cleaning the inner walls of a large number of heat exchange tubes is increasingly increased.

The cleaning method of the inner wall of the heat exchange tube used at present mainly comprises three types: (1) manual cleaning, in which tools such as a slender rod and a brush are used manually to clean one by one or a chemical agent is used to clean the whole body, but the cleaning mode not only needs to close the heating and ventilation system, but also needs to detach the end cover of the water chamber, so that the cleaning efficiency is low, a large amount of manpower and material resources are consumed, and the inner wall of the heat exchange tube is possibly damaged; (2) the method comprises the following steps of cleaning rubber balls, namely installing ball serving devices and recoverers on two sides of a heat exchanger, and driving balls to move in heat exchange tubes by utilizing water flow to achieve the purpose of cleaning, but the cleaning mode has the problems that the heat exchange tubes are blocked by the balls, the balls are difficult to recover and the like, and the cleaning efficiency of the heat exchange tubes cannot be ensured because the balls enter each heat exchange tube; (3) the cleaning method comprises the following steps that (1) pipe brushes are cleaned, a four-way reversing valve is arranged on the outer side of a water pipe of a heat exchanger, two brush baskets and one pipe brush are arranged on two sides of each heat exchange pipe, and the direction of water flow is changed by the four-way reversing valve, so that the pipe brushes can be pushed by the water flow to reciprocate in the heat exchange pipes, and the cleaning purpose is achieved; the pipe brush cleaning system does not need to be disassembled during working, and the brush basket and the pipe brush which are arranged on each heat exchange pipe ensure cleaning efficiency and are convenient to recover.

However, in the actual cleaning process of the tube brush type heat exchange tube cleaning system, the existing tube brush type cleaning system has the following problems:

1. the existing tube brush cleaning system enables water flow to reversely flow through a four-way reversing valve, so that a brush body can do reciprocating motion in a heat exchange tube. For example, a patent with publication number CN110657702A entitled "a brush type on-line cleaning system device". However, when the four-way reversing valve works, water flow which should flow out of the water chamber and flow to the terminal equipment is reversely flowed back to the interior of the heat exchanger, the water flow of a terminal system cannot be supplemented, the operation will be stopped, the working efficiency of the heating and ventilation system can be reduced, and periodic impact vibration can be caused to the heat exchanger by high-pressure water flow which repeatedly and instantly changes the flow direction, so that the stability of the whole structure of the heat exchanger can be influenced.

2. The tube brush of the existing tube brush cleaning system is completely pushed by water flow, so that the hidden danger that the tube brush is clamped in a brush basket or in a heat exchange tube exists when the water pressure is insufficient; especially, the heat exchanger design that adopts hydroecium side low pressure at present is more and more, and the rivers of low pressure will lead to the probability greatly increased of tube brush card in the heat exchange tube to promote the tube brush even and accomplish normal cleaning work, in case take place the condition of tube brush card in the heat exchange tube in addition, then need shut down the heat exchanger, unpack apart the hydroecium and take out the tube brush by the manual work, very inconvenient.

3. The existing pipe brush cleaning system is used for cleaning the inside of a completely closed heat exchanger at preset timing, the working condition of the pipe brush system cannot be fed back to outside personnel, the outside personnel cannot reasonably adjust the working scheme of the pipe brush system according to the working condition of the heat exchanger, the uncontrollable performance of the pipe brush system is too high, and the working scheme of the cleaning system cannot be reasonably adjusted by matching with the working condition of the heat exchanger.

Disclosure of Invention

In order to overcome the above problems, the present invention proposes an intelligent tube brush cleaning system based on electric drive that simultaneously solves the above problems.

The technical scheme adopted by the invention for solving the technical problems is as follows: an intelligent tube brush cleaning system based on electric drive is composed of a plurality of single sleeve brush cleaning devices; the single casing brush cleaning device consists of a motor driving module, a cleaning module and a control module; the motor driving module consists of a water inlet end motor assembly and a water outlet end motor assembly, and the water inlet end motor assembly and the water outlet end motor assembly consist of a micro motor, a motor shell and a connecting rope and are respectively arranged on the outer side of a water inlet end tube plate and the outer side of a water outlet end tube plate of the heat exchange tube; the micro motor is arranged on the outer side of the brush basket and is connected with the pipe brush through a connecting rope; the micro motor drives the pipe brush to do circular reciprocating motion in the heat exchange pipe by retracting and releasing the connecting rope, so that the cleaning work is completed; the motor shell is arranged outside the micro motor to protect the micro motor from being influenced by water flow;

the cleaning module consists of a water inlet end brush basket, a water outlet end brush basket and a pipe brush, wherein the water inlet end brush basket and the water outlet end brush basket are respectively arranged on the outer side of a water inlet end pipe plate and the outer side of a water outlet end pipe plate of the heat exchange pipe and are used for receiving and fixing the pipe brush; the pipe brush is connected with the micro motor through a connecting rope, and the outer side of the pipe brush is provided with bristles which are staggered in hardness; the pipe brush circularly reciprocates in the heat exchange pipe by means of power provided by the motor driving module to clean the inner wall of the heat exchange pipe;

the control module consists of sensor components such as a distance sensor and a temperature sensor and a processor positioned in a heating and ventilation system control cabinet, wherein the distance sensor components are arranged on the pipe brush and the water inlet end brush basket and feed back the position information of the pipe brush to the processor; the temperature sensor assembly is arranged on the pipe brush, collects relevant information in the heat exchanger and sends the information to the processor, and data support is provided for self optimization of a cleaning system operation scheme; the processor receives signals fed back by the distance sensor, and controls the operation and stop of the water inlet end motor assembly and the water outlet end motor assembly according to different positions of the pipe brush, so that the pipe brush cleaning device is controlled to complete a normal working process.

Preferably, the tube brush is a movable nylon brush, and the bristles on the outer side are formed by alternately arranging soft bristles parallel to the brush basket framework and hard bristles parallel to the gap of the brush basket framework.

Preferably, when the pipe brush needs to move along with water flow from the water inlet end to the water outlet end of the heat exchange pipe, the water inlet end motor assembly enters a standby state, control over the pipe brush is released, the water outlet end motor assembly is started, the pipe brush is pulled to move from the water inlet end to the water outlet end of the heat exchange pipe through the recovery connecting rope, and the inner wall of the heat exchange pipe is cleaned.

Preferably, when the pipe brush needs to move against the water flow from the water outlet end of the heat exchange pipe to the water inlet end, the water outlet end motor assembly enters a standby state, control over the pipe brush is released, the water inlet end motor assembly is started, the pipe brush is pulled to move from the water outlet end of the heat exchange pipe to the water inlet end through the recovery connecting rope, and the inner wall of the heat exchange pipe is cleaned again.

Preferably, when the tube brush moves along with water flow and the movement speed is higher, the control module sends a signal to the motor driving module to control the micro motor to reduce the provided traction force so as to reduce the movement speed of the tube brush; through the cooperation of the control module and the motor driving module, the movement speed of the pipe brush can be controlled within a preset range no matter the pipe brush moves along with water flow or against water flow.

The invention has the beneficial effects that:

1. aiming at the point 1 provided by the background technology, the invention adopts the motor driving module arranged outside the water inlet end brush basket to replace a four-way reversing valve to solve the problem. The motor components arranged outside the two ends of the heat exchange tube are matched to work, the motor driving module provides traction force, and the traction tube brush moves back and forth in the heat exchange tube. Therefore, the direction of water flow in the heat exchange tube does not need to be changed in the cleaning process, the tube brush can also make reciprocating motion in the heat exchange tube, and the stability of the heat exchanger structure and the normal work of the whole heating and ventilation system including the terminal equipment are not influenced completely.

2. In view of the above background, the present invention provides a solution to this problem by actively controlling the amount of traction provided by the micro-motor. Motor drive module is connected through being connected the rope with the tube brush, even in the less heat exchanger of hydroecium lateral pressure, when the tube brush need be reciprocating motion in the heat exchange tube, the micro motor among the motor drive module starts, and the initiative provides traction force, accomplishes normal work flow, neither can take place the condition of tube brush card in the heat exchange tube and improved the practicality of clean system again greatly.

3. In view of the point 3 proposed in the background art, the present invention employs a sensor system in which a distance sensor is combined with a temperature sensor to solve this problem. When the tube brush leaves the water inlet end brush basket and enters the heat exchange tube, the distance sensor records the advancing distance of the tube brush in real time, so that the moving speed of the tube brush in the heat exchange tube is calculated, when the tube brush moves along with water flow, the moving speed is high, a processor of the control module sends a signal to the motor driving module, the traction force provided by the micro motor is reduced, so that the moving speed of the tube brush is reduced, when the tube brush moves against water flow, the control module correspondingly sends a signal to control the motor driving module to increase the traction force, the moving speed of the tube brush is increased, the tube brush is prevented from being clamped in the heat exchange tube, and the moving speed of the tube brush can be controlled in an ideal speed interval under the conditions of the movement of the water flow or the movement of the water flow by the cooperation of the control module and the motor driving module; the temperature sensor arranged on the pipe brush can record the water temperature change condition in the heat exchange pipe when the pipe brush moves in the heat exchange pipe, and can provide effective information such as the working efficiency of the heat exchanger and the running condition, the cleaning efficiency and the like of the cleaning system for related personnel. When the heat exchange efficiency of the heat exchanger is reduced, the control device automatically starts the cleaning system to clean the heat exchange tube, and after the heat exchange efficiency is improved, the cleaning system is automatically closed, so that the heat exchange tube is efficiently and intelligently cleaned.

Note: the foregoing designs are not sequential, each of which provides a distinct and significant advance in the present invention over the prior art.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of a single casing brush cleaning apparatus of the present invention installed at both ends of a heat exchange tube;

FIG. 2 is an exploded view of the assembly of the tube brush cleaning device of the present invention at the water inlet end of the heat exchange tube;

FIG. 3 is an exploded view of the assembly components of the tube brush cleaning device of the present invention at the outlet end of the heat exchange tube;

FIG. 4 is a full sectional view of the tube brush cleaning apparatus of the present invention in a standby state at the water inlet end of the heat exchange tube;

FIG. 5 is a schematic view of the tube brush of the present invention after it has entered the outlet end brush basket;

in the figures, the reference numerals are as follows:

1. the device comprises a motor driving module 2, a cleaning module 3, a tube plate 4, a heat exchange tube 5, a processor 6, a control module 7, a motor shell 8, a micro motor 9, a water inlet end brush basket 10, a tube brush 11, a temperature sensor 12, a connecting rope 13, a distance sensor 14, a water outlet end brush basket 15, a water inlet end motor assembly 16 and a water outlet end motor assembly

Detailed Description

As shown in fig. 1 to 3: an intelligent tube brush cleaning system based on electric drive is composed of a plurality of single tube brush cleaning devices, wherein one tube brush cleaning device is respectively arranged in each heat exchange tube 4; the single casing brush cleaning device consists of a motor driving module 1, a cleaning module 2 and a control module 6; the effect diagram of the single casing brush cleaning device arranged at the two ends of the heat exchange tube 4 is shown in figure 1; the motor driving module 1 consists of a water inlet end motor assembly 15 and a water outlet end motor assembly 16, the water inlet end motor assembly 15 and the water outlet end motor assembly 16 consist of a motor shell 7, a micro motor 8 and a connecting rope 12, the micro motor 8 is arranged in the motor shell 7 and is connected with the pipe brush 10 through the connecting rope 12, and the motor shell 7 protects the micro motor 8 from water flow; the cleaning module 2 consists of a water inlet end brush basket 9, a water outlet end brush basket 14 and a tube brush 10, wherein the water inlet end brush basket 9 and the water outlet end brush basket 14 are respectively arranged on the outer side of a water inlet end tube plate and the outer side of a water outlet end tube plate of the heat exchange tube 4 and used for receiving and fixing the tube brush 10, the tube brush 10 is a movable nylon brush, and bristles on the outer side are alternately formed by soft bristles parallel to a brush basket framework and hard bristles parallel to a brush basket framework gap; the control module 6 comprises sensor components such as a distance sensor 13 and a temperature sensor 11 and a processor 5 positioned in a heating and ventilation system control cabinet, wherein the distance sensor component 13 is arranged on the pipe brush 10 and the water inlet end brush basket 9, the position information of the pipe brush 10 is fed back to the processor 5, the temperature sensor component 14 is arranged on the pipe brush 10, and the relevant information in the heat exchange pipe 4 is collected and sent to the processor 5, so that data support is provided for self optimization of a cleaning system operation scheme; the processor 5 receives the signals fed back by the distance sensor 13, and controls the operation and stop of the water inlet end motor assembly 15 and the water outlet end motor assembly 16 according to different positions of the pipe brush 10, so as to control the pipe brush cleaning device to complete a normal working process.

When the pipe brush cleaning device is in a water inlet end standby state, as shown in fig. 4, the water outlet end motor assembly 16 is in a shutdown state, and the water inlet end motor assembly 15 is in a startup state, so as to provide a smaller traction force, and fix the pipe brush 10 in the water inlet end brush basket 9. When the pipe brush cleaning device enters a working state, the water inlet end motor assembly 15 enters a standby state, the control on the pipe brush 10 is released, the water outlet end motor assembly 16 is started, and the pipe brush 10 is pulled to move from the water inlet end to the water outlet end of the heat exchange pipe 4 through the recovery connecting rope 12. Meanwhile, the distance sensor 13 and the temperature sensor 11 which are positioned on the tube brush 10 start to work, the temperature sensor 11 records the water temperature in the heat exchange tube in real time, the distance sensor 13 records the position information of the tube brush 10 in the heat exchange tube all the time, the two sensors send data to the processor 5 in the control cabinet for processing, the processor 5 calculates the movement speed of the tube brush 10 in the heat exchange tube 4 according to the data provided by the distance sensor 13 and sends signals to the water inlet end motor assembly 15 and the water outlet end motor 16 to adjust the traction force provided by the water inlet end motor assembly 15 and the water outlet end motor 16 in real time so as to control the movement speed of the tube brush 10 within a preset working range.

As shown in fig. 5, after the pipe brush 10 reaches the end position of the heat exchange pipe 4 and enters the water outlet end brush basket, the processor 5 sends a signal, the water outlet end motor assembly 16 enters a standby state, the control on the pipe brush 10 is released, the water inlet end motor assembly 15 is started, the connecting rope 12 is retracted, the pipe brush 10 is pulled to move towards the water inlet end of the heat exchange pipe 4, and during the period, the processor 5 adjusts the magnitude of the traction force provided by the water inlet end motor assembly 15 in real time according to the moving speed of the pipe brush 10 in the heat exchange pipe to control the pipe brush 10 to move in the heat exchange pipe 4 at a stable speed until the pipe brush 10 returns to the position shown in fig. 4, and the system enters the standby state again, so that the whole pipe brush cleaning device completes one-cycle cleaning task.

The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.